腮腺腺淋巴瘤的MSCT诊断及鉴别诊断

Multislice CT Diagnosis of Parotid Gland Lymphoma

目的：探讨腮腺腺淋巴瘤的CT表现。方法：回顾性分析13例经手术及组织病理学证实的腮腺腺淋巴瘤患者的CT影像学资料，影像学分析包括病灶数目、部位、大小、形态、密度。结果：13例患者中男10例，女3例，平均年龄53.6岁。13例患者共18个病灶，其中多发者4例，位于双侧者2例，位于腮腺浅叶者12个病灶，病灶均为类圆形，边界清楚，密度多均匀，增强后CT值平均增加30~45 HU，其中6个病灶局部密度不均，内见斑点状或小囊状低密度灶。结论：腮腺腺淋巴瘤为良性肿瘤，常见于中老男性，好发于浅叶，病灶可多发及双侧发病，多中度不均匀强化，故MSCT表现有一定特征性。

Objective：To investigate multislice CT（MSCT）manifestations of parotid gland lymphoma. Method：CT characteristics of 13 cases with lymphoma confirmed surgically and pathologically were studied retrospectively. The number,location,size,shape,and density of the main parameters were studies. Result：In 13 cases,8 cases were male,while 3 cases were female,and the average age were 53.6 years old. 13 patients with 18 lesions,including 4 cases of multiple,2 cases in bilateral,and 12 lesions located in the superficial lobe of parotid gland. All lesions were round or oval, clear boundary,mostly homogeneous density,CT value increased on an average of 30-45 HU after enhancement. The density of 6 cases were uniform because of small patchy or cystic-density lesion inside. Conclusion：Parotid gland lymphoma is the characteristic of benign tumor,and the predilection to middle age male. It often occurs in the superficial lobe,manifests mutiple and bilateral lesions,and intermediate inhomogeneous enhancement after enhanced. Therefore,it has certain MSCT characteristics.